Tagged Questions

A layer is a collection of information. It contains specific elements of a gis in a specific presentation method (e.g raster or vector layer). Layers can be edited separately in order to create individual toppics for a map.

I'm trying to save a symbology from a layer, but any way I try to do it, it just gives me a unsymbolised feature shapefile when I try to add the newly created .lyr file. Anyone have any idea why this ...

In general is it better (more efficient) to work with Feature Classes (FC) or Feature Layers (a feature layer of a FC). I know when I construct model I always (or generally) work with feature layers ...

I have found a solution to the issue below. The problem had to do with coding GetParameterAsText without actually using it as an input in a tool. That was the reason the raster layers wouldn't turn ...

I have several geoTIFFs stored on a server that I can access through http. I would like to add them as raster layers analogous to adding a local raster file through the "Add Raster Layer" button, but ...

i am new to QGIS. I have a base map from google, openstreet map over which i want to show the boundaries of another layer. How can i do that?
While trying to edit, is it possible that QGIS allows to ...

I am trying to copy a layer in an mxd and add that layer to the bottom of the TOC using Python, but I have not found a way to save the mxd programatically without making a copy. I also haven't found ...

I'm trying to develop a plugin in QGIS 2.6, which opens a composer, add a map and a legend, and (among other things) adjusts the legend.
Is there a way to go through items in a composer legend with ...

I am creating a tool to automate a data standardization process. Part of this process is saving the feature class (variable "filename") as a layer file, projecting it into another coordinate system ...

i have a layer in data view that i am using to show the locations of wells and when i go to layout view about half of the locations disappear and cant view them anymore in layout view but still exist ...

I'd like to add a layer to display historical data on cloud cover in a Leaflet project I'm currently working on. This is specific to a given day in 2012 for a city in England, and ideally I'd like to ...

I have created contour lines and a hillshade layers and saved it as a vector and as a GeoTiff file respectively. However, when I try to add these layers to an existing project, nothing shows up. Where ...

I am using leaflet maps to compare heat layer and marker layer. I've an option to add multiple marker and heat layers dynamically. For me Heat layers are enabled by default as on when user adds new ...

I get an error "Map: Geometry (wkid: 3301) cannot be converted to spatial reference of the map (wkid: 4326)" when I want to add only graphics layer.
I found that spatial reference for a map is defined ...

I am trying to add a graphic to my graphics layer during a map mouse event. In the javascript console, I can see that my graphic object is created and no error is thrown when I add the graphic to my ...

My QGIS ToC contains layer groups and some layers that do not belong to any group.
I would like to create a text file containing the name of those layers that do not belong to any group.
Is there an ...

A few months ago I inherited an old (10+ years) Java Desktop application that used maps and simple icons to represent point data to various users. The application was writted in Swing and used Esri ...

Using QGIS 2.4, how can I copy one or more layers (with its properties, style, and the path of the source data) on QGIS and paste it in a different .QGS project?
I tried to make this, clicking in a ...

I have more than 300 layer files located in many sub-Folders and sub-sub-Folders. All Sub Folders are located in one large directory.I read Use python to add layers to TOC
and I try, with arcpy, to ...

My python script looks at layers in an MXD, then does a couple of clip and measure operations and generates a PDF.
It works accurately and quickly (0.5-3 seconds) when all the layers in the MXD are ...

I am trying to rebuild this ESRI example with my own feature layers: https://developers.arcgis.com/javascript/jssamples/dataadapterfeaturelayer.html
Since I just want a dropdown menu existing out of ...